A Researcher Is Interested in the Relationship Between IQ and Longevity.A

question 68

Essay

A researcher is interested in the relationship between IQ and longevity.A sample of n = 200 obituaries is selected from the newspaper and old school records are consulted to determine the individuals' IQ scores when they were between the ages of 10 and 20.The individuals were then classified into two IQ groups and three age groups at the time of death.The data are as follows.Based on these results,is there a significant relationship between IQ and longevity? Test with α = .05.​

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Definitions:

Raffle Tickets

Tickets sold as a means to raise money for a cause, with the chance of winning prizes.

Binomial Distribution

a probability distribution describing the number of successes in a fixed number of independent Bernoulli trials, with a constant probability of success.

Bernoulli Experiment

A random experiment with exactly two possible outcomes, often termed success and failure.

Probability Density Function

A Probability Density Function (PDF) is a function that describes the relative likelihood for a continuous random variable to take on a given value.